Stair steppers

ABSTRACT

The present disclosure relates to a stair steppers, comprising a base, a bracket and a motion mechanism, the base supports the bracket, and the motion mechanism is disposed on the bracket, the bracket comprises a main body fixed to the base and a guide rail hinged to the main body, the guide rail is disposed to be inclined to the base, the motion mechanism comprises pedal links, pedals and pedal cranks, the pedal is disposed on the pedal link, the pedal link is hinged to the pedal crank, the pedal cranks are further hinged to the main body of the bracket, a hinge point of the pedal crank and the pedal link is disposed to be spaced apart from a hinge point of the pedal crank and the main body, the pedal link is provided with an abutting portion which abuts against the guide rail and is reciprocatingly movable along the guide rail. Since the guide rail is hinged to the main body, it is feasible to adjust an inclination angle of the guide rail relative to the base so as to change a movement trajectory of the pedal links and thereby adjust the difficulty of exercise of the stair steppers. When an angle between the guide rail and the base is larger, the difficulty of exercise is higher, otherwise, the difficulty of exercise is lower.

TECHNICAL FIELD

The present disclosure relates to the technical field of fitness equipment, and particularly to a stair steppers.

BACKGROUND

A stair steppers enables a body builder to constantly repeat an act of climbing staircases, can not only enhance the function of a cardiovascular system but also sufficiently build muscles of the thigh and calf, and is fitness equipment appealing to consumers. Especially, the stair steppers is smaller in size and particularly adapted for use at home.

As for different users with different physical strength, difficulty of exercise of the stair steppers needs to be adjusted to meet each user's requirements, or the stair steppers needs to be adjusted for the same user with different physical strength at different time. However, the current stair steppers usually has fixed physical exercise difficulty and it is hard for the stair steppers to satisfy the user's different demands.

SUMMARY

Based on the above, it is necessary to provide a stair steppers with adjustable difficulty of exercise.

A stair steppers comprises a base, a bracket and a motion mechanism, wherein the base supports the bracket, and the motion mechanism is disposed on the bracket, the bracket comprises a main body fixed to the base and a guide rail hinged to the main body, the guide rail is disposed to be inclined to the base, the motion mechanism comprises pedal links, pedals and pedal cranks, the pedal is disposed to the pedal link, the pedal link is hinged to the pedal crank, the pedal cranks are further hinged to the main body of the bracket, a hinge point of the pedal crank and the pedal link is disposed to be spaced apart from a hinge point of the pedal crank and the main body, the pedal link is provided with an abutting portion which abuts against the guide rail and is reciprocatingly movable along the guide rail.

Since the guide rail is hinged to the main body, it is feasible to adjust an inclination angle of the guide rail relative to the base so as to change a movement trajectory of the pedal links and thereby adjust the difficulty of exercise by the stair steppers. When an angle between the guide rail and the base is larger, the difficulty of exercise is higher, otherwise the difficulty of exercise is lower.

In one of embodiments, the bracket further comprises a telescopic member, one end of the guide rail is hinged to the main body, the other end is hinged to an end of the telescopic member, and the telescopic member is extended and retracted to push the guide rail to rotate, thereby adjusting the inclination angle of the guide rail.

In one of embodiments, the bracket further comprises a driving member, the telescopic member comprises two portions which are telescopic to each other, the driving member is connected to one portion of the telescopic member, and the guide rail is connected to the other portion of the telescopic member.

In one of embodiments, the main body of the bracket comprises two support arms fixed to the base, one end of the guide rail is hinged to one of the support arms, and the two support arms and the base jointly form a triangular support seat to support the guide rail.

In one of embodiments, the motion mechanism further comprises rotary discs connected to the pedal cranks, and the rotary disc is rotatable along with the pedal crank; the motion mechanism further comprises a driving disc rotatable along with the rotary discs and a fan resistance disc transmissively connected to the driving disc, and the driving disc is driven by the rotary discs to rotate.

In one of embodiments, the motion mechanism further comprises a belt, and the driving disc and the fan resistance disc are transmissively connected through the belt; the motion mechanism further comprises a snub pulley whose one end is secured to the bracket and the other end abuts against the belt such that the belt is tensioned.

In one of embodiments, the motion mechanism further comprises a magnetoresistance mechanism which is disposed at the rotary discs, the fan resistance disc or the driving disc to generate a resistance to rotation of the rotary discs, the fan resistance disc or the driving disc.

In one of embodiments, the magnetoresistance mechanism comprises a magnetic member, a magnetic force is generated between the magnetic member and the rotary discs, the fan resistance disc or the driving disc, and a distance of the magnet member relative to the rotary discs, the fan resistance disc or the driving disc is adjustable.

In one of embodiments, the stair steppers further comprises a generator device and an electronic device, the generator device is mounted to the rotary discs, the fan resistance disc or the driving disc and generates electricity upon rotation of the rotary discs, the fan resistance disc or the driving disc, and the generator device is electrically connected to the electronic device to power the electronic device.

In one of embodiments, the motion mechanism further comprises handle links, handle cranks, a rotation shaft and handles, the handle link is connected to the rotary disc and rotatable along with the rotary disc, the handle crank is hinged to the handle link and to the rotation shaft, the rotation shaft is rotatably connected to the main body of the bracket, and the handles are secured to the rotation shaft and rotatable along with the rotation shaft.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view of a stair steppers according to an embodiment of the present disclosure;

FIG. 2 is a perspective view of the stair steppers of FIG. 1 as viewed from another angle;

FIG. 3 is a side view of the stair steppers shown in FIG. 1;

FIG. 4 is a side view of the stair steppers shown in FIG. 1 as viewed from another angle.

DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS

Referring to FIG. 1 to FIG. 4, a stair steppers according to an embodiment of the present disclosure comprises a base 10, a bracket 30 and a motion mechanism 50, wherein the base 10 supports the bracket 30, and the motion mechanism 50 is disposed on the bracket 30. The bracket 30 comprises a main body 301 fixed to the base 10 and a guide rail 302 hinged to the main body 301, and the guide rail is disposed to be inclined to the base 10. The motion mechanism 50 comprises pedal links 502, pedals 503 and pedal cranks 504, the pedal 503 is disposed to the pedal link 502, the pedal link 502 is hinged to the pedal crank 504, the pedal cranks 504 are further hinged to the main body 301 of the bracket 30, and a hinge point of the pedal crank 504 and the pedal link 502 is disposed to be apart from a hinge point of the pedal crank 504 and the main body 301. The pedal link 502 is provided with an abutting portion 5022 which abuts against the guide rail 302 and is reciprocatingly movable along the guide rail 302. It may be appreciated that there may be two pedal links 502 and two pedals 503, and the user's two feet step on the two pedals 503 respectively.

During exercise, the user steps on the pedals 503 and exerts a force to enable the abutting portions 5022 of the pedal links 502 to move reciprocatingly up and down along the guide rail 302. In this course, the pedal links 502 bring the pedal cranks 504 to rotate relative to the bracket 30. Since the guide rail 302 is hinged to the main body 301, it is feasible to adjust an inclination angle of the guide rail 302 relative to the base 10 so as to change a movement trajectory of the pedal links 502 and thereby adjust the difficulty of exercise of the stair steppers. When an angle between the guide rail 302 and the base 10 is larger, the difficulty of exercise is higher, otherwise, the difficulty of exercise is lower.

In the present embodiment, the bracket 30 further comprises a telescopic member 304, one end of the guide rail 302 is hinged to the main body 301, the other end is hinged to an end of the telescopic member 304, and the telescopic member 304 is extended and retracted to push the guide rail 302 to rotate, thereby adjusting the inclination angle of the guide rail 302. Specifically in the present embodiment, the end of the guide rail 302 away from the base 10 is hinged to the main body 301, and the end adjacent to the base 10 is hinged to the telescopic member 304.

In the present embodiment, the main body 301 of the bracket 30 comprises two support arms 308 fixed to the base 10, one end of the guide rail 302 is hinged to one support arm 308, and the two support arms 308 and the base 10 jointly form a triangular support seat to support the guide rail 302.

In the present embodiment, the bracket 30 further comprises a driving member 306, the telescopic member 304 comprises two portions which are telescopic to each other, the driving member 306 is connected to one portion of the telescopic member 304, and the guide rail 302 is connected to the other portion of the telescopic member 304. Specifically in the present embodiment, the telescopic member 304 is disposed to be substantially parallel to the base 10. Specifically, the driving member 306 is disposed on the base 10.

In the present embodiment, both ends of the pedal link 502 are respectively connected to one end of the pedal 503 and one end of the pedal crank 504, and the other end of the pedal crank 504 is hinged to the main body 301; the abutting portion 5022 is disposed at a location where the pedal 502 is connected to the pedal link 502.

In the present embodiment, the motion mechanism 50 further comprises rotary discs 506 connected to the pedal cranks 504, and the rotary discs 506 are rotatable along with the pedal cranks 504.

In the present embodiment, the motion mechanism 50 further comprises a driving disc 508 rotatable along with the rotary discs 506 and a fan resistance disc 507 transmissively connected to the driving disc 508, and the driving disc 508 is driven by the rotary discs 506 to rotate. Specifically, the driving disc 508 and rotary discs 506 are disposed coaxially.

Specifically, the motion mechanism 50 further comprises a belt 509, and the driving disc 508 and the fan resistance disc 507 are transmissively connected through the belt 509. During rotation of the fan resistance disc 507, air generates a resistance to its rotation, thereby producing certain resistance to the user's movement and thereby achieving a better movement effect. Furthermore, the higher the movement frequency is, the larger the resistance is.

Specifically, the fan resistance disc 507 is provided with a plurality of radially-arranged vanes 5074 to enable air to generate the resistance during rotation of the fan resistance disc 507.

In the present embodiment, the motion mechanism 50 further comprises a snub pulley 510 whose one end is secured to the bracket 30 and the other end abuts against the belt 509 to tension the belt 509 so that the driving disc 508 and the fan resistance disc 507 rotate smoothly.

In the present embodiment, the motion mechanism 50 further comprises a magnetoresistance mechanism which is disposed at the rotary discs 506, the fan resistance disc 507 or driving disc 508 and used to produce a resistance to rotation of the rotary discs 506, the fan resistance disc 507 or the driving disc 508. The magnetoresistance mechanism comprises a magnetic member, and a magnetic force is generated between the magnetic member and the rotary discs 506, the fan resistance disc 507 or the driving disc 508. A distance of the magnetoresistance mechanism relative to the rotary discs 506, the fan resistance disc 507 or the driving disc 508 may be adjusted to regulate the magnitude of the resistance and further implement adjustment of the difficulty of exercise of the stair steppers. Specifically, the fan resistance disc 507 is provided with a mounting cavity 5072 in which the magnetoresistance mechanism is disposed.

In the present embodiment, the stair steppers may further comprise a generator device and an electronic device 70, the generator device is mounted to the rotary discs 506, the fan resistance disc 507 or the driving disc 508 and generates electricity upon rotation of the rotary discs 506, the fan resistance disc 507 or the driving disc 508, and the generator device is electrically connected to the electronic device 70 to power the electronic device 70.

In the present embodiment, the motion mechanism 50 further comprises handle links 512, handle cranks 514, a rotation shaft 515 and handles 516, the handle link 512 is connected to the rotary disc 506 and rotatable along with the rotary disc 506, the handle crank 514 is hinged to the handle link 512 and connected to the rotation shaft 515, the rotation shaft 515 is rotatably connected to the main body 301 of the bracket 30, and the handles 516 are secured to the rotation shaft 515 and rotatable along with the rotation shaft 515. When the rotary disc 506 rotates, it brings the handle link 512 to rotate, then brings the handle crank 514 to rotate and then brings the rotation shaft 515 and handle 516 to rotate. As such, when the user steps on the pedals 503, the handles held by a hand swing forth and back so that the user's arms extend and flex, the user's arms can be built at the same time and a fitness effect is enhanced.

Technical features of the above embodiments may be combined arbitrarily. All possible combinations of technical features of the above embodiments are not described for the sake of brief description. However, the combinations of the technical features all should be considered as falling within the scope of disclosure of the description so long as they are not contradictory to one another.

The above embodiments only represent several implementation modes of the present disclosure and they are described in detail, but they should not be understood as limiting the scope of the present disclosure. It should be appreciated that those having ordinary skill in the art may make several variations and improvements without departing from the ideas of the present disclosure, and these variations and improvements all fall within the scope of the present disclosure. Hence, the protection scope of the present disclosure should be subject to the appended claims. 

What is claimed is:
 1. A stair steppers, characterized in that the stair steppers comprises a base, a bracket and a motion mechanism, the base supporting the bracket, and the motion mechanism being disposed on the bracket, the bracket comprising a main body fixed to the base and a guide rail hinged to the main body, the guide rail being disposed to be inclined to the base, the motion mechanism comprising pedal links, pedals and pedal cranks, the pedal being disposed to the pedal link, the pedal link being hinged to the pedal crank, the pedal crank being further hinged to the main body of the bracket, a hinge point between the pedal crank and the pedal link being disposed to be spaced apart from a hinge point between the pedal crank and the main body, the pedal link being provided with an abutting portion which abuts against the guide rail and being reciprocatingly movable along the guide rail.
 2. The stair steppers according to claim 1, characterized in that the bracket further comprises a telescopic member, one end of the guide rail being hinged to the main body, the other end being hinged to an end of the telescopic member, and the telescopic member being extended and retracted to push the guide rail to rotate, thereby adjusting the inclination angle of the guide rail.
 3. The stair steppers according to claim 2, characterized in that the bracket further comprises a driving member, the telescopic member comprising two portions which are telescopic to each other, the driving member being connected to one portion of the telescopic member, and the guide rail being connected to the other portion of the telescopic member.
 4. The stair steppers according to claim 1, characterized in that the main body of the bracket comprises two support arms fixed to the base, one end of the guide rail being hinged to one of the support arms, and the two support arms and the base jointly forming a triangular support seat to support the guide rail.
 5. The stair steppers according to claim 1, characterized in that the motion mechanism further comprises rotary discs connected to the pedal cranks, and the rotary disc being rotatable along with the pedal crank; the motion mechanism further comprises a driving disc rotatable along with the rotary discs and a fan resistance disc transmissively connected to the driving disc, and the driving disc is driven by the rotary discs to rotate.
 6. The stair steppers according to claim 5, characterized in that the motion mechanism further comprises a belt, and the driving disc and the fan resistance disc being transmissively connected through the belt; the motion mechanism further comprises a snub pulley whose one end is secured to the bracket and the other end abuts against the belt such that the belt is tensioned.
 7. The stair steppers according to claim 5, characterized in that the motion mechanism further comprises a magnetoresistance mechanism which is disposed at the rotary discs, the fan resistance disc or the driving disc to generate a resistance to rotation of the rotary discs, the fan resistance disc or the driving disc.
 8. The stair steppers according to claim 7, characterized in that the magnetoresistance mechanism comprises a magnetic member, a magnetic force being generated between the magnetic member and the rotary disc, the fan resistance disc or the driving disc, and a distance of the magnet member relative to the rotary discs, the fan resistance disc or the driving disc being adjustable.
 9. The stair steppers according to claim 5, characterized in that the stair steppers further comprises a generator device and an electronic device, the generator device being mounted to the rotary discs, the fan resistance disc or the driving disc and generating electricity upon rotation of the rotary discs, the fan resistance disc or the driving disc, and the generator device being electrically connected to the electronic device to power the electronic device.
 10. The stair steppers according to claim 5, characterized in that the motion mechanism further comprises handle links, handle cranks, a rotation shaft and handles, the handle link being connected to the rotary disc and rotatable along with the rotary disc, the handle crank being hinged to the handle link and connected to the rotation shaft, the rotation shaft being rotatably connected to the main body of the bracket, and the handles being secured to the rotation shaft and rotatable along with the rotation shaft. 